Re: Honda 9.9 or Yamaha 9.9 ????
Why only those two choices? You won't consider a Tohatsu? Nissan? Merc? ...
Are you dealing with restriced waters? 10HP is very small for a boat rated for a 60 hp. That's a pretty heavy rig. I doubt you'll even get it to plane with a 9.9.
FWIW, I'm running a 30 hp on a 16' aluminum ( Mirrocraft 1615-0) and am satisfied with it's performance .
If it were me, I wouldn't consider anything less than a 25 and a 30-40 would be better.